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Code Issues Releases Wiki Activity

started work on shaders.cpp

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This commit is contained in:
Zeno Rogue 2018-02-09 00:29:20 +01:00
parent 754c4177ca
commit 4966bde3d4
8 changed files with 317 additions and 122 deletions
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97
basegraph.cpp
View File

@ -157,7 +157,6 @@ bool cameraangle_on;
void setcameraangle(bool b) {
if(cameraangle_on != b) {
glMatrixMode(GL_PROJECTION);
cameraangle_on = b;
ld cam = vid.camera_angle * M_PI / 180;
@ -170,24 +169,22 @@ void setcameraangle(bool b) {
0, -ss, cc, 0,
0, 0, 0, 1
};
glMultMatrixf(yzspin);
glhr::projection_multiply(glhr::as_glmatrix(yzspin));
}
}
void start_projection(int ed) {
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glTranslatef((vid.xcenter*2.)/vid.xres - 1, 1 - (vid.ycenter*2.)/vid.yres, 0);
glhr::new_projection();
glhr::projection_multiply(glhr::translate((vid.xcenter*2.)/vid.xres - 1, 1 - (vid.ycenter*2.)/vid.yres, 0));
if(ed) {
if(stereo::mode == stereo::sLR) {
glTranslatef(ed * (stereo::eyewidth() - .5) * 4, 0, 0);
glScalef(2, 1, 1);
if(stereo::mode == stereo::sLR) {
glhr::projection_multiply(glhr::translate(ed * (stereo::eyewidth() - .5) * 4, 0, 0));
glhr::projection_multiply(glhr::scale(2, 1, 1));
}
else {
glTranslatef(-ed * stereo::eyewidth(), 0, 0);
glhr::projection_multiply(glhr::translate(-ed * stereo::eyewidth(), 0, 0));
}
}
}
@ -205,11 +202,8 @@ void stereo::set_projection(int ed) {
0, GLfloat(-2. / vid.yres), 0, 0,
0, 0, GLfloat(.4 / stereo::scrdist), 0,
0, 0, 0, 1};
glMultMatrixf(ortho);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glhr::projection_multiply(glhr::as_glmatrix(ortho));
}
else if(pmodel) {
@ -226,15 +220,12 @@ void stereo::set_projection(int ed) {
0, 0, -(hidepth+lowdepth)/(hidepth-lowdepth), -1,
0, 0, -2*lowdepth*hidepth/(hidepth-lowdepth), 0};
glMultMatrixf(frustum);
glhr::projection_multiply(glhr::as_glmatrix(frustum));
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if(ed) glhr::projection_multiply(glhr::translate(stereo::ipd * vid.radius * ed/2, 0, 0));
if(ed) glTranslatef(stereo::ipd * vid.radius * ed/2, 0, 0);
glScalef(1, 1, -1);
glTranslatef(0, 0, stereo::scrdist);
glhr::projection_multiply(glhr::scale(1, 1, -1));
glhr::projection_multiply(glhr::translate(0, 0, stereo::scrdist));
stereo::scrdist_text = 0;
}
@ -249,17 +240,14 @@ void stereo::set_projection(int ed) {
0, 0, -(hidepth+lowdepth)/(hidepth-lowdepth), -1,
0, 0, -2*lowdepth*hidepth/(hidepth-lowdepth), 0};
glMultMatrixf(frustum);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glhr::projection_multiply(glhr::as_glmatrix(frustum));
GLfloat sc = vid.radius / (vid.yres/2.);
GLfloat mat[16] = {sc,0,0,0, 0,-sc,0,0, 0,0,-1,0, 0,0, 0,1};
glMultMatrixf(mat);
glhr::projection_multiply(glhr::as_glmatrix(mat));
if(ed) glTranslatef(stereo::ipd*ed/2, 0, 0);
if(ed) glhr::projection_multiply(glhr::translate(stereo::ipd * ed/2, 0, 0));
stereo::scrdist_text = vid.yres * sc / 2;
}
@ -291,9 +279,6 @@ void stereo::set_viewport(int ed) {
void setGLProjection(int col) {
DEBB(DF_GRAPH, (debugfile,"setGLProjection\n"));
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
unsigned char *c = (unsigned char*) (&col);
glClearColor(c[2] / 255.0, c[1] / 255.0, c[0]/255.0, 1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
@ -516,9 +501,8 @@ bool gl_print(int x, int y, int shift, int size, const char *s, int color, int a
glDisable(GL_LIGHTING);
glEnable(GL_TEXTURE_2D);
glhr::be_textured();
glMatrixMode(GL_MODELVIEW);
glcolor2((color << 8) | 0xFF);
int tsize = 0;
@ -533,22 +517,8 @@ bool gl_print(int x, int y, int shift, int size, const char *s, int color, int a
bool clicked = (mousex >= x && mousey <= y && mousex <= x+tsize && mousey >= y-ysiz);
/* extern bool markcorner;
if(clicked && markcorner) {
markcorner = false;
int w = tsize, h = -ysiz;
displaystr(x, y, 1, 10, "X", 0xFFFFFF, 8);
displaystr(x+w, y, 1, 10, "X", 0xFFFFFF, 8);
displaystr(x, y+h, 1, 10, "X", 0xFFFFFF, 8);
displaystr(x+w, y+h, 1, 10, "X", 0xFFFFFF, 8);
markcorner = true;
} */
for(int i=0; s[i];) {
// glListBase(f.list_base);
// glCallList(s[i]); // s[i]);
int tabid = getnext(s,i);
float fx=f.tx[tabid];
float fy=f.ty[tabid];
@ -558,12 +528,10 @@ bool gl_print(int x, int y, int shift, int size, const char *s, int color, int a
GLERR("pre-print");
for(int ed = (stereo::active() && shift)?-1:0; ed<2; ed+=2) {
glPushMatrix();
glTranslatef(x-ed*shift-vid.xcenter,y-vid.ycenter, stereo::scrdist_text);
glhr::set_modelview(glhr::translate(x-ed*shift-vid.xcenter,y-vid.ycenter, stereo::scrdist_text));
stereo::set_mask(ed);
glBindTexture(GL_TEXTURE_2D, f.textures[tabid]);
#if 1
tver[1] = tver[10] = -hi;
tver[6] = tver[9] = wi;
tver[12+4] = tver[12+7] = fy;
@ -573,30 +541,13 @@ bool gl_print(int x, int y, int shift, int size, const char *s, int color, int a
glTexCoordPointer(3, GL_FLOAT, 0, &tver[12]);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#else
glBegin(GL_QUADS);
glTexCoord2d(0,0); glVertex2f(0, -hi);
glTexCoord2d(0,fy); glVertex2f(0, 0);
glTexCoord2d(fx,fy); glVertex2f(wi, 0);
glTexCoord2d(fx,0); glVertex2f(wi, -hi);
glEnd();
#endif
glPopMatrix();
}
if(stereo::active() && shift) stereo::set_mask(0);
GLERR("print");
// int tabid = s[i];
x += wi;
/*
printf("point %d,%d\n", x, y);
glBegin(GL_POINTS);
glVertex3f(rand() % 100 - rand() % 100, rand() % 100 - rand() % 100, 100);
glEnd(); */
x += wi;
}
glDisable(GL_TEXTURE_2D);
@ -943,6 +894,8 @@ void drawCircle(int x, int y, int size, int color) {
if(size < 0) size = -size;
#if CAP_GL
if(vid.usingGL) {
glhr::be_nontextured();
glhr::set_modelview(glhr::id());
qglcoords = 0;
glcolor2(color);
x -= vid.xcenter; y -= vid.ycenter;
@ -1029,11 +982,6 @@ hookset<void(renderbuffer*)> *hooks_hqshot;
#if CAP_SDL
void saveHighQualityShot(const char *fname, const char *caption, int fade) {
#if !CAP_SDLGFX
addMessage(XLAT("High quality shots not available on this platform"));
return;
#endif
int maxrange = getDistLimit() * 3/2;
dynamicval<int> v3(sightrange, (cheater && sightrange < maxrange) ? maxrange : sightrange);
@ -1168,6 +1116,7 @@ void setvideomode() {
glDisable(GL_MULTISAMPLE);
glViewport(0, 0, vid.xres, vid.yres);
glhr::init();
resetGL();
}
#endif

1
compileunits.h
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@ -22,6 +22,7 @@
#endif
#if IN_CU(0)
#include "shaders.cpp"
#include "util.cpp"
#include "hyperpoint.cpp"
#include "patterns.cpp"

9
graph.cpp
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@ -2268,6 +2268,8 @@ void drawaura() {
#endif
#if CAP_GL
glhr::be_nontextured();
glhr::set_modelview(glhr::id());
setcameraangle(true);
glEnableClientState(GL_COLOR_ARRAY);
@ -2287,6 +2289,7 @@ void drawaura() {
facs[d] = .99999 + .00001 * exp(dd);
}
facs[10] = 10;
cmul[1] = cmul[0];
for(int r=0; r<=AURA; r++) for(int z=0; z<11; z++) {
float rr = (M_PI * 2 * r) / AURA;
@ -2307,9 +2310,9 @@ void drawaura() {
int bz = (c == 3 || c == 2) ? z+1 : z;
glcoords[c][0] = cx[br][bz][0];
glcoords[c][1] = cx[br][bz][1];
coltab[c][0] = cx[br][bz][2];
coltab[c][1] = cx[br][bz][3];
coltab[c][2] = cx[br][bz][4];
coltab[c][0] = min<float>(cx[br][bz][2], 1);
coltab[c][1] = min<float>(cx[br][bz][3], 1);
coltab[c][2] = min<float>(cx[br][bz][4], 1);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);

3
init.cpp
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@ -17,6 +17,9 @@
#define VER "10.3g"
#define VERNUM 10307
#define CAP_SHADER CAP_GL
#define VERNUM_HEX 0xA0A7
#define GEN_M 0

39
polygons.cpp
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@ -312,7 +312,7 @@ void glapplymatrix(const transmatrix& V) {
mat[j+i] = -mat[j+i];
}
glMultMatrixf(mat);
glhr::set_modelview(glhr::as_glmatrix(mat));
}
int tinfshift;
@ -321,10 +321,12 @@ void gldraw(int useV, const transmatrix& V, int ps, int pq, int col, int outline
if(tinf) {
glEnable(GL_TEXTURE_2D);
glhr::be_textured();
glBindTexture(GL_TEXTURE_2D, tinf->texture_id);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(3, GL_FLOAT, 0, &tinf->tvertices[tinfshift]);
}
else glhr::be_nontextured();
for(int ed = stereo::active() ? -1 : 0; ed<2; ed+=2) {
if(ed) stereo::set_projection(ed), stereo::set_viewport(ed);
@ -332,38 +334,11 @@ void gldraw(int useV, const transmatrix& V, int ps, int pq, int col, int outline
again:
if(useV == 1) {
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glapplymatrix(V);
}
else
glhr::set_modelview(glhr::id());
/*
if(useV == 2) {
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
GLfloat mat[16] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1
};
// EYETODO mat[8] += ed * vid.eye;
glMultMatrixf(mat);
}
if(useV == 3) {
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
GLfloat mat[16] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 0, 0,
0, 0, stereo::scrdist, 1
};
// EYETODO mat[8] += ed * vid.eye;
glMultMatrixf(mat);
} */
if(draw) {
glEnable(GL_STENCIL_TEST);
@ -386,7 +361,7 @@ void gldraw(int useV, const transmatrix& V, int ps, int pq, int col, int outline
};
GLfloat *cur = currentvertices;
activateVertexArray(scr, 4);
if(useV) glPopMatrix();
glhr::set_modelview(glhr::id());
glDrawArrays(tinf ? GL_TRIANGLES : GL_TRIANGLE_FAN, 0, 4);
activateVertexArray(cur, 0);
draw = false; goto again;
@ -406,8 +381,6 @@ void gldraw(int useV, const transmatrix& V, int ps, int pq, int col, int outline
glcolor2(outline);
glDrawArrays(GL_LINE_STRIP, ps, pq);
}
if(useV) glPopMatrix();
}
if(stereo::active()) stereo::set_projection(0), stereo::set_viewport(0), stereo::set_mask(0);

14
rug.cpp
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@ -1147,6 +1147,7 @@ void drawRugScene() {
glDisable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glhr::be_textured();
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
@ -1179,14 +1180,13 @@ void drawRugScene() {
0, GLfloat(vnear / sca / vid.yres), 0, 0,
0, 0, GLfloat(-(vnear+vfar)/(vfar-vnear)), -1,
0, 0, GLfloat(-2*vnear*vfar/(vfar-vnear)), 1};
glMultMatrixf(frustum);
glhr::projection_multiply(glhr::as_glmatrix(frustum));
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if(!rug_perspective) glTranslatef(0, 0, -model_distance);
if(!rug_perspective)
glhr::projection_multiply(glhr::translate(0, 0, -model_distance));
if(ed) {
if(gwhere == gEuclid)
glTranslatef(stereo::ipd*ed/2, 0, 0);
glhr::projection_multiply(glhr::translate(stereo::ipd*ed/2, 0, 0));
else {
use_precompute = true;
for(auto p: points) {
@ -1206,7 +1206,7 @@ void drawRugScene() {
0, GLfloat(1/yview), 0, 0,
0, 0, GLfloat(.001), 0,
0, 0, 0, 1};
glMultMatrixf(ortho);
glhr::projection_multiply(glhr::as_glmatrix(ortho));
}
glColor4f(1.f, 1.f, 1.f, 1.f);
@ -1221,6 +1221,8 @@ void drawRugScene() {
glFogf(GL_FOG_END, gwhere == gSphere ? 10 : 4);
}
glhr::set_modelview(glhr::id());
for(int t=0; t<size(triangles); t++)
drawTriangle(triangles[t]);

267
shaders.cpp Normal file
View File

@ -0,0 +1,267 @@
// gl matrices
//-------------
// #undef CAP_SHADER
// #define CAP_SHADER 0
namespace glhr {
enum mode { gmColored, gmTextured, gmMAX};
struct glmatrix {
GLfloat a[4][4];
GLfloat* operator[] (int i) { return a[i]; }
GLfloat* as_array() { return a[0]; }
const GLfloat* as_array() const { return a[0]; }
};
glmatrix operator * (glmatrix m1, glmatrix m2) {
glmatrix res;
for(int i=0; i<4; i++)
for(int j=0; j<4; j++) {
res[i][j] = 0;
for(int k=0; k<4; k++)
res[i][j] += m1[i][k] * m2[k][j];
}
return res;
}
glmatrix id() {
glmatrix M;
for(int i=0; i<4; i++)
for(int j=0; j<4; j++)
M[i][j] = (i == j);
return M;
}
glmatrix scale(ld x, ld y, ld z) {
glmatrix tmp;
for(int i=0; i<4; i++)
for(int j=0; j<4; j++)
tmp[i][j] = (i==j);
tmp[0][0] = x;
tmp[1][1] = y;
tmp[2][2] = z;
return tmp;
}
glmatrix translate(ld x, ld y, ld z) {
glmatrix tmp;
for(int i=0; i<4; i++)
for(int j=0; j<4; j++)
tmp[i][j] = (i==j);
tmp[3][0] = x;
tmp[3][1] = y;
tmp[3][2] = z;
return tmp;
}
glmatrix& as_glmatrix(GLfloat o[16]) {
glmatrix& tmp = (glmatrix&) (o[0]);
return tmp;
}
// ** legacy **
#if !CAP_SHADER
void new_projection() {
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
}
void projection_multiply(const glmatrix& m) {
glMultMatrixf(m.as_array());
}
void set_modelview(const glmatrix& m) {
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(m.as_array());
}
void be_nontextured() { }
void be_textured() { }
void init() { }
#endif
// /* shaders */
#if CAP_SHADER
glmatrix projection;
void new_projection() {
projection = id();
}
void projection_multiply(const glmatrix& m) {
projection = m * projection;
}
#define glMatrixMode DISABLED
#define glLoadIdentity DISABLED
#define glMultMatrixf DISABLED
#define glScalef DISABLED
#define glTranslatef DISABLED
#define glPushMatrix DISABLED
#define glPopMatrix DISABLED
void init();
int compileShader(int type, const char* s) {
GLint status;
GLint shader = glCreateShader(type);
glShaderSource(shader, 1, &s, NULL);
glCompileShader(shader);
GLint logLength;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0) {
char log[logLength];
glGetShaderInfoLog(shader, logLength, &logLength, log);
if(logLength > 0)
printf("compiler log (%d): '%s'\n", logLength, log);
}
glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
if (status == 0) {
glDeleteShader(shader);
printf("failed to compile shader\n");
shader = 0;
}
return shader;
}
// https://www.opengl.org/sdk/docs/tutorials/ClockworkCoders/attributes.php
struct GLprogram *current = NULL;
enum {
UNIFORM_MODELVIEWPROJECTION_MATRIX,
UNIFORM_NORMAL_MATRIX,
NUM_UNIFORMS
};
struct GLprogram {
GLuint _program;
GLuint vertShader, fragShader;
GLint uniforms[NUM_UNIFORMS];
GLprogram(string vsh, string fsh) {
_program = glCreateProgram();
printf("creating program %d\n", _program);
vertShader = compileShader(GL_VERTEX_SHADER, vsh.c_str());
fragShader = compileShader(GL_FRAGMENT_SHADER, fsh.c_str());
// Attach vertex shader to program.
glAttachShader(_program, vertShader);
// Attach fragment shader to program.
glAttachShader(_program, fragShader);
GLint status;
glLinkProgram(_program);
GLint logLength;
glGetProgramiv(_program, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0) {
char log[logLength];
glGetProgramInfoLog(_program, logLength, &logLength, log);
if(logLength > 0)
printf("linking log (%d): %s\n", logLength, log);
}
glGetProgramiv(_program, GL_LINK_STATUS, &status);
if (status == 0) {
printf("failed to link shader\n");
exit(1);
}
// glBindAttribLocation(_program, GLKVertexAttribPosition, "position"); ??
// glBindAttribLocation(_program, GLKVertexAttribNormal, "normal"); ??
uniforms[UNIFORM_MODELVIEWPROJECTION_MATRIX] = glGetUniformLocation(_program, "modelViewProjectionMatrix");
uniforms[UNIFORM_NORMAL_MATRIX] = glGetUniformLocation(_program, "normalMatrix");
printf("uniforms: %d %d\n", uniforms[UNIFORM_MODELVIEWPROJECTION_MATRIX], uniforms[UNIFORM_NORMAL_MATRIX]);
}
~GLprogram() {
glDeleteProgram(_program);
if(vertShader) glDeleteShader(vertShader), vertShader = 0;
if(fragShader) glDeleteShader(fragShader), fragShader = 0;
current = NULL;
}
void enable() {
if(this != current) {
glUseProgram(_program);
current = this;
}
}
};
GLprogram *textured, *nontextured;
void init() {
projection = id();
for(int i=0; i<2; i++) {
auto texture_only = [=] (string s) -> string { if(i) return s; else return ""; };
auto not_texture_only = [=] (string s) -> string { if(!i) return s; else return ""; };
(i==1?textured:nontextured) = new GLprogram(
// "attribute vec4 position;"
// "attribute vec3 normal;"
"varying vec4 vColor;"
+ texture_only( "varying vec2 vTexCoord;" ) +
"uniform mat4 modelViewProjectionMatrix;"
"uniform mat3 normalMatrix;"
"void main() {"
// "vec3 eyeNormal = normalize(normalMatrix * normal);"
// "vec3 lightPosition = vec3(0.0, 0.0, 1.0);"
// "vec4 diffuseColor = vec4(0.4, 0.4, 1.0, 1.0);"
// "float nDotVP = max(0.0, dot(eyeNormal, normalize(lightPosition)));"
// "vColor = diffuseColor * nDotVP;"
+ texture_only("vTexCoord = gl_MultiTexCoord0.xy;") +
"vColor = gl_Color;"
"gl_Position = modelViewProjectionMatrix * gl_Vertex;"
"}",
"uniform sampler2D myTexture;"
"varying vec4 vColor;"
+ texture_only( "varying vec2 vTexCoord;" ) +
"void main() {"
+ texture_only(" gl_FragColor = vColor * texture2D(myTexture, vTexCoord);")
+ not_texture_only(" gl_FragColor = vColor;") +
" }"
);
}
nontextured->enable();
}
void set_modelview(const glmatrix& modelview) {
glmatrix mvp = modelview * projection;
glUniformMatrix4fv(current->uniforms[UNIFORM_MODELVIEWPROJECTION_MATRIX], 1, 0, mvp.as_array());
// glmatrix nm = modelview;
// glUniformMatrix3fv(current->uniforms[UNIFORM_NORMAL_MATRIX], 1, 0, nm[0]);
}
void be_nontextured() { nontextured->enable(); }
void be_textured() { textured->enable(); }
#endif
}

9
textures.cpp
View File

@ -462,12 +462,10 @@ void saveFullTexture() {
bool newmove = false;
void drawRawTexture() {
glDisable(GL_LIGHTING);
glEnable(GL_TEXTURE_2D);
glMatrixMode(GL_MODELVIEW);
glhr::be_textured();
glcolor2(0xFFFFFF20);
glPushMatrix();
glTranslatef(0, 0, stereo::scrdist);
glhr::set_modelview(glhr::translate(0, 0, stereo::scrdist));
glBindTexture(GL_TEXTURE_2D, textureid);
vector<GLfloat> tver, sver;
for(int i=0; i<4; i++) {
@ -489,8 +487,7 @@ void drawRawTexture() {
glTexCoordPointer(3, GL_FLOAT, 0, &tver[0]);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glPopMatrix();
glDisable(GL_TEXTURE_2D);
glDisable(GL_TEXTURE_2D);
}
struct magicmapper_point {